Total Femoral Bone (i.e., Including Joint Head And Femoral Stem) Patents (Class 623/22.4)
  • Patent number: 10532126
    Abstract: The present invention relates to a method of providing a graft scaffold for cartilage repair, particularly in a human patient. The method of the invention comprising the steps of providing particles and/or fibres; providing an aqueous solution of a gelling polysaccharide; providing mammalian cells; mixing said particles and/or fibres, said aqueous solution of a gelling polysaccharide and said mammalian cells to obtain a printing mix; and depositing said printing mix in a three-dimensional form. The invention further relates to graft scaffolds and grafts obtained by the method of the invention.
    Type: Grant
    Filed: December 11, 2015
    Date of Patent: January 14, 2020
    Assignee: ETH ZURICH
    Inventors: Matti Kesti, Marcy Zenobi-Wong, Michael Muller
  • Patent number: 10213313
    Abstract: Femoral heads, mobile inserts, acetabular components, and modular junctions for orthopedic implants, e.g., hip replacement implants, and methods of using femoral heads, mobile inserts, acetabular components, and modular junctions for orthopedic implants are provided. Prosthetic femoral heads, mobile inserts, and acetabular components are provided that can alleviate soft tissue impingement, reduce implant wear, and/or reduce frictional torque. Modular junctions are provided that can minimize the incidence of loosening and micromotion that can occur at modular junctions of orthopedic implants.
    Type: Grant
    Filed: September 19, 2016
    Date of Patent: February 26, 2019
    Assignee: The General Hospital Corporation
    Inventors: Orhun K. Muratoglu, Kartik Mangudi Varadarajan, Henrik Malchau, Harry E. Rubash, Andrew A. Freiberg, Michael Patrick Duffy, Thomas Zumbrunn
  • Patent number: 9566162
    Abstract: An adjustable humeral implant includes a humeral tray and a humeral coupler. The humeral tray includes a humeral coupler receiving portion. The humeral coupler includes a humeral tray mating portion and a stem portion extending from the humeral tray mating portion along a first axis. The humeral tray mating portion is translatable within the humeral coupler receiving portion in a direction transverse to the first axis.
    Type: Grant
    Filed: March 3, 2015
    Date of Patent: February 14, 2017
    Assignee: Biomet Manufacturing, LLC
    Inventor: Bryce Isch
  • Patent number: 9445905
    Abstract: Femoral heads, mobile inserts, acetabular components, and modular junctions for orthopedic implants, e.g., hip replacement implants, and methods of using femoral heads, mobile inserts, acetabular components, and modular junctions for orthopedic implants are provided. Prosthetic femoral heads, mobile inserts, and acetabular components are provided that can alleviate soft tissue impingement, reduce implant wear, and/or reduce frictional torque. Modular junctions are provided that can minimize the incidence of loosening and micromotion that can occur at modular junctions of orthopedic implants.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: September 20, 2016
    Assignee: The General Hospital Corporation
    Inventors: Orhun K. Muratoglu, Kartik Mangudi Varadarajan, Henrik Malchau, Harry E. Rubash, Andrew A. Freiberg, Michael Patrick Duffy, Thomas Zumbrunn
  • Patent number: 9265612
    Abstract: A hip implant having two distinct bodies, a neck body and a bone fixation body. The neck body is formed from a solid metal and has an interface for connecting to a femoral ball. The bone fixation body has an elongated shape and is formed as a porous structure that is inserted into an intramedullary canal of a patient.
    Type: Grant
    Filed: July 21, 2013
    Date of Patent: February 23, 2016
    Inventor: Philip Scott Lyren
  • Patent number: 9211191
    Abstract: A method of performing joint arthroplasty on a patient with a bone fragment of a bone at least partially separated from the bone in one embodiment includes providing a prosthetic component with a bone connecting portion and a bone fragment portion, implanting the bone connecting portion of the prosthetic component in the bone, and attaching the bone fragment to the bone using the bone fragment portion.
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: December 15, 2015
    Assignee: DePuy Synthes Products, Inc.
    Inventors: Stuart R. Grant, Robin Maisonneuve
  • Patent number: 9173742
    Abstract: A spacer device (1) for the two-step treatment of prosthesis infections, made from biologically compatible and porous material designed to allow the possibility of adding pharmaceutical products, active and/or therapeutic ingredients, includes a first portion (2) designed to be fixed to a corresponding bone bed remaining from a previous implant, and a second portion (3) designed to be inserted in a corresponding articular area of the patient, the first portion (2) and the second portion (3) being attached by adjustable connecting means (4).
    Type: Grant
    Filed: August 6, 2008
    Date of Patent: November 3, 2015
    Assignee: TECRES S.P.A.
    Inventors: Giovanni Faccioli, Renzo Soffiatti
  • Patent number: 9138238
    Abstract: A method for performing an orthopaedic surgical procedure on a femur includes attaching a proximal end of an intramedullary adaptor to an intramedullary orthopaedic surgical instrument, securing a distal end of an intramedullary adaptor to a base cutting block, inserting the intramedullary orthopaedic surgical instrument into a medullary canal using the base cutting block, and positioning the base cutting block on a distal end of the femur.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: September 22, 2015
    Assignee: DEPUY (IRELAND)
    Inventors: Benjamin J. Sordelet, Chad E. Derf, Rebecca L. Chaney, Craig S. Tsukayama, Carl F. Livorsi, Phillip G. Withee
  • Patent number: 9084612
    Abstract: An orthopaedic surgical instrument assembly includes a base block, an intramedullary orthopaedic surgical instrument configured to be inserted into a medullary canal of a patient's femur, an adaptor, and a modular cutting block. The base cutting block includes a slot, and the adaptor is positioned in the slot. The adaptor includes a mounting bracket engaged with the base plate, and a fastener coupled to the intramedullary orthopaedic surgical instrument. The modular cutting block is configured to be secured to the base block.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: July 21, 2015
    Assignee: DEPUY (IRELAND)
    Inventors: Ben Sordelet, Chad E. Derf, Rebecca L. Chaney, Craig S. Tsukayama, Carl F. Livorsi, Phillip G. Withee
  • Patent number: 9005305
    Abstract: Methods and apparatuses for attaching tissue structures to orthopaedic implants. In one exemplary embodiment, the methods and apparatuses are used to attach soft tissue and/or bone to a proximal tibial implant. In another exemplary embodiment, the methods and apparatuses are used to attach soft tissue and/or bone to a proximal femoral implant.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: April 14, 2015
    Assignee: Zimmer, Inc.
    Inventors: John E. Meyers, Robert E. Montgomery, Dennis R. Aquilo, Douglas G. Branscome, Kelly A. Timmons, Kimberly Les, Peter F. Choong, Peter E. Darrigan, Luke Vaughan, Ernest U. Conrad, Jay S. Wunder, David H. Anderson, Kevin S. Cook, G. Douglas Letson, Gary D. Bos
  • Patent number: 8974540
    Abstract: Methods and apparatus for orthopedic replacement of the hip and hip fracture fixation devices include structures and techniques for fixing or enhancing interconnection of implant components, such as by increasing the interconnection in an interference fit with one or more tapers, threads, and/or cooling of components prior to assembly. For example, a prosthetic femoral neck implant can include a thread and a Morse taper for lockable attachment to a prosthetic femoral head and/or intramedullary stem.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: March 10, 2015
    Assignee: iHip Surgical, LLC
    Inventor: Anatol Podolsky
  • Patent number: 8968415
    Abstract: Disclosed is an orthopedic implant that includes an anchor, a bore, and a compressible and expandable mesh. The anchor is configured to secure the implant at an implantation site and defines a longitudinal axis. The bore is defined by the anchor and extends along the longitudinal axis. The compressible and expandable mesh is aligned along the longitudinal axis and defines a plurality of openings. The mesh is configured to compress along the longitudinal axis and expand from the longitudinal axis to engage surrounding bone or tissue at the implantation site to secure the implant at the implantation site.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: March 3, 2015
    Assignee: Biomet Manufacturing, LLC
    Inventors: Jason D. Meridew, John R. White, Mark A. Bollinger, W. Jason Slone, Kirk J. Bailey, Jon C. Serbousek
  • Publication number: 20150039096
    Abstract: A prosthetic femoral implant for use in a hip joint, as a ball and socket type joint, is disclosed. The implant includes a modular neck having a variety of adjustable positions to adjust the lateral offset and version angle of the femoral implant in relation to the femur. The implant further includes a broad, full collar for providing a compression force increasing the interdigitation between the interface of the bone, implant and cement. The implant also includes a stem having a depression having a roughened porous surface for resisting the increased torsional loads placed on the implant due to the increased lateral offset and version angle. The stem further comprises three distinct zones, each zone having its own roughened surface creating a tripartite differential porosity.
    Type: Application
    Filed: April 4, 2014
    Publication date: February 5, 2015
    Applicant: DJO Surgical Chatanooga Group
    Inventors: Timothy McTighe, Ian Murray, Hugh U. Cameron
  • Patent number: 8936649
    Abstract: A femoral prosthesis for use during performance of a hip replacement procedure includes a plurality of femoral stem components in a range of various sizes and a plurality of femoral head component in a range of various sizes. The anterior/posterior stem taper angle of the femoral stem component varies across its range of sizes.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: January 20, 2015
    Assignee: DePuy Synthes Products, LLC
    Inventor: Daniel N. Huff
  • Publication number: 20150018961
    Abstract: Hip replacement surgery (hip arthroplasty) includes implantation of a distal stem into a femur of a patient, and implantation of a proximal body to connect to the distal stem. A practitioner uses a “trial” or “provisional” to determine a suitable size and configuration for the implantable proximal body, then selects a suitable proximal body from a set of differently sized and shaped proximal bodies. The trial adjusts discretely, as opposed to continuously, and has discrete settings that correspond to the sizes and configurations available in the set of implantable proximal bodies. In some examples, the trials are provided as a kit of parts, where each part in the kit is adjustable for height (i.e., the length of the femur). The parts in the kit can have different, fixed, values for offset (i.e., the lateral distance of the femur to the center of the femoral head in the acetabulum).
    Type: Application
    Filed: June 5, 2014
    Publication date: January 15, 2015
    Inventors: Adam Christopher Huddle, Robert D. Krebs
  • Patent number: 8894716
    Abstract: A method of orienting a femoral head member of an implant relative to an acetabular member positioned in the acetabulum including implanting a femoral stem of an implant within an intramedullary canal of a femur, inserting an acetabular member in the acetabulum, positioning a femoral head member of the implant at least partially in the acetabular member with the femoral head member including a curved articulating surface and a plurality of indicia on the curved articulating surface, and orienting the femoral head member relative to the acetabular member and generally aligning one of the indicia on the curved articulating surface with an alignment feature of the acetabular member to signify an orientation of the femoral head member relative to the acetabular member.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: November 25, 2014
    Assignee: Smith & Nephew, Inc.
    Inventors: Stephen McMahon, Charles Wayne Allen, David C. Kelman
  • Patent number: 8876909
    Abstract: A method for centering a stem of an implant at an implantation site. The method includes implanting at the implantation site the implant having a sleeve rigidly mounted to the stem of the implant, the stem extends through an interior area of the sleeve. The method further includes compressing the sleeve by applying force to the sleeve to expand a mesh portion of the sleeve outward from the stem and into engagement with sidewalls of the implantation site to thereby center the stem at the implantation site.
    Type: Grant
    Filed: November 18, 2013
    Date of Patent: November 4, 2014
    Assignee: Biomet Manufacturing, LLC
    Inventors: Jason D. Meridew, John R. White, Mark A. Bollinger
  • Patent number: 8778029
    Abstract: For replacing a human hip or knee joint and the adjoining bone sections, an implantable prosthesis is provided, comprising a joint replacement part (10), a shaft replacement part (12) and a rod-shaped shaft anchoring part (16) being insertable into an axial cavity (14) in the shaft replacement part (12).
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: July 15, 2014
    Inventor: Rainer Baumgart
  • Publication number: 20140180429
    Abstract: A method of forming an orthopedic implant, the method comprising the steps of providing a first implant component and a second implant component, the first implant component having a stem and a second implant component including a head defining a female taper sized to receive the stem; coupling the stem to the female taper of the head; forming a modular injunction between the stem and head; applying a seal to the modular injunction to limit bodily fluid from contacting the modular injunction; and forming the orthopedic implant.
    Type: Application
    Filed: January 10, 2014
    Publication date: June 26, 2014
    Inventors: Mukesh Kumar, Robert M. Ronk, Daniel E. Williamson
  • Publication number: 20140128986
    Abstract: Orthopedic hip replacement is made safer and more effective by enhancing interconnection of hip implant components, such as by improving an interference fit using one or more tapers, threads, and/or cooling of components prior to assembly. For example, a prosthetic femoral neck can include a thread and a Morse taper for lockable attachment to a prosthetic femoral head and/or intramedullary stem. A monoblock head and neck unit is described, having an integrated prosthetic femoral head and prosthetic neck, with structures for engaging the stem.
    Type: Application
    Filed: November 6, 2013
    Publication date: May 8, 2014
    Applicant: iHip Surgical, LLC
    Inventor: Anatol Podolsky
  • Patent number: 8702804
    Abstract: The present teachings are directed to a shoulder prosthesis having an adjustable radial offset and/or angular inclination provided by relative rotation of an adapter interdisposed between a stem and a head. In one example, a prosthesis has a stem having a first longitudinal axis. The prosthesis can also include an adaptor including a first taper. The first taper can have a first taper axis. The prosthesis can include a head supported by the adaptor. The head can be selectively oriented and then coupled to the first taper and the combination can be selectively orientated and the coupled to the stem.
    Type: Grant
    Filed: December 2, 2011
    Date of Patent: April 22, 2014
    Assignee: Biomet Manufacturing, LLC
    Inventors: Aaron P. Smith, Kevin T. Stone, Nicholas Cordaro
  • Publication number: 20140094927
    Abstract: A hip arthroplasty prosthesis for treating a patient condition includes a stem portion configured to penetrate into the bone of a femur of the patient, and includes a head portion formed of a polymeric material and being fixedly attached to the stem portion. The head portion may include a spherical portion with a diameter sized to match the diameter of an acetabulum of an adult patient in a manner permitting the acetabulum to interface with and articulate relative the head portion over a distributed portion of the head portion.
    Type: Application
    Filed: September 24, 2013
    Publication date: April 3, 2014
    Inventor: Steven H. Weeden
  • Publication number: 20140067080
    Abstract: A femoral hip implant includes a first end, a second end, and a collar with a porous surface, all fabricated from a single piece of material. The entire area of the collar is porous, and the collar elastically deflects under load to promote bone ingrowth.
    Type: Application
    Filed: September 5, 2013
    Publication date: March 6, 2014
    Inventor: Christopher G. Sidebotham
  • Publication number: 20140039637
    Abstract: The present disclosure provides a femoral prosthesis for use during a revision procedure. The femoral prosthesis includes a body, a neck, a stem, and a sleeve. The sleeve facilitates reattachment of an osteotomized proximal femur, specifically the greater trochanter, following a revision femoral prosthesis surgery involving an extended trochanteric osteotomy. Additionally, the sleeve promotes ingrowth of the osteotomized proximal femur with the sleeve.
    Type: Application
    Filed: October 11, 2013
    Publication date: February 6, 2014
    Applicant: Zimmer, Inc.
    Inventor: Jeff Dickerson
  • Patent number: 8623093
    Abstract: The present disclosure provides a femoral prosthesis for use during a revision procedure. The femoral prosthesis includes a body, a neck, a stem, and a sleeve. The sleeve facilitates reattachment of an osteotomized proximal femur, specifically the greater trochanter, following a revision femoral prosthesis surgery involving an extended trochanteric osteotomy. Additionally, the sleeve promotes ingrowth of the osteotomized proximal femur with the sleeve.
    Type: Grant
    Filed: June 15, 2011
    Date of Patent: January 7, 2014
    Assignee: Zimmer, Inc.
    Inventor: Jeffrey Paul Dickerson
  • Publication number: 20130304225
    Abstract: A prosthetic femoral component comprising: (a) a femoral shaft; (b) a femoral neck operatively coupled to the femoral shaft; and, (c) a femoral ball operatively coupled to the femoral shaft, where a neck axis extending longitudinally through the femoral neck is angled at no greater than thirty-five degrees with respect to a femoral shaft axis extending longitudinally through the femoral shaft.
    Type: Application
    Filed: May 8, 2012
    Publication date: November 14, 2013
    Inventor: Richard D. Komistek
  • Publication number: 20130226307
    Abstract: Methods for performing a hemiarthroplasty procedure. In some implementations, the method may comprise providing a component of an endoprosthesis, such as a femoral component of a hip prosthesis. The component may comprise a silicon nitride ceramic material, and may further comprise a coated articulating surface. The coated articulating surface may comprise a coating configured to reduce a coefficient of friction of the articulating surface. The method may further comprise positioning the endoprosthesis such that the coated articulating surface is positioned adjacent to a patient's native articular cartilage. In this manner, the coated articulating surface may articulate with the native articular cartilage following the procedure.
    Type: Application
    Filed: February 27, 2013
    Publication date: August 29, 2013
    Applicant: Amedica Corporation
    Inventor: Amedica Corporation
  • Publication number: 20130211533
    Abstract: A porous coating for a medical implant, wherein the porous coating comprises a porous, shape memory material.
    Type: Application
    Filed: February 11, 2013
    Publication date: August 15, 2013
    Applicant: MX Orthopedics, Corp.
    Inventor: MX Orthopedics, Corp.
  • Patent number: 8449621
    Abstract: A ready-for-use polymer cement spacer device for the replacement of a permanent joint prosthesis during a two-stage replacement, includes a shank includes for attachment for placing to the supporting bone and a head in the joint region. The spacer device includes two complementary members incorporating rigid members for assembly between them, the first member being loaded with a first active substance and the second member being loaded with a second active substance. The first and second active substances are preferably antibiotics, selected from gentamycin, trobamycin, vancomycin, erythromycin, fucidin, tetracycline or other suitable antibiotics. The temporary joint implant maintains a suitable space for the time necessary for the operation of replacing a permanent prosthesis to prevent tissues from occupying the space released by removal of the permanent prosthesis and ensures effective treatment of resistant infections by local treatment of the joint area through at least two different active substances.
    Type: Grant
    Filed: March 2, 2007
    Date of Patent: May 28, 2013
    Assignee: Teknimed
    Inventors: Alain Leonard, Claudine Lavergne, Jean-françois Oglaza
  • Publication number: 20130060345
    Abstract: The invention reduces friction and wear in partial hip prosthesis by combining optimized geometry of the articulation and surface treatment of the prosthetic component. The acetabulum is reamed to the bone. One of the articulating surfaces—either that of the reamed acetabulum, or that of the femoral head prosthesis is a-spherical so that a fluid-filled gap is formed at the area of major load transfer. The fluid-filled gap is sealed by an annular area of contact, over which the concave and the convex components are congruent. The preferred surface treatment is by diamond-like coating, which results in very low coefficient of friction and high abrasion resistance against the bone. The prosthetic head is fixed to the femur by either a conventional stem, a perforated shell, or a femoral neck prosthesis screwed onto the femur so that it is partially covered by bone and partially exposed on the medial-inferior aspect, where it abuts the reamed cortex of the calcar region.
    Type: Application
    Filed: December 12, 2010
    Publication date: March 7, 2013
    Inventor: Slobodan Tepic
  • Publication number: 20130030543
    Abstract: Provided herein are hip implant devices and related surgical methods. The hip implants and methods can optionally be used in patients of Asian descent.
    Type: Application
    Filed: March 24, 2011
    Publication date: January 31, 2013
    Applicants: MAYO FOUNDATION FOR MEDICAL EDUCATION AND RESEARCH, EXCERA ORTHOPEDICS, INC.
    Inventors: Bernard Morrey, Kai-Nan An, Andrew Thoreson, Qingshan Chen, Xinyuan David Wang, James Zhiming Jiang
  • Patent number: 8337504
    Abstract: An implant includes a body configured to be implanted at least partially within a bone canal. The body has a proximal end, a longitudinal axis and a cavity located at the proximal end. The cavity is configured to mate with an insertion tool and defines a cavity axis that is not parallel to the longitudinal axis of the implant.
    Type: Grant
    Filed: September 10, 2010
    Date of Patent: December 25, 2012
    Assignee: Depuy Products, Inc.
    Inventor: Gabriel Surma
  • Patent number: 8262709
    Abstract: A device and method for the stabilization of the shafts of threaded hip pins in the treatment of intracapsular fractures of the neck of the femur, using an intertrochanteric hip pin stabilizing rod, a cortical side plate with a releasably attached drill and insertion tool jig, said jig comprising a means for accurately inserting said rod and a plurality of parallel threaded hip pins through openings in the jig, the cortical side plate, and the intertrochanteric pin stabilizing rod, across the fracture and into the head of the femur.
    Type: Grant
    Filed: September 24, 2011
    Date of Patent: September 11, 2012
    Inventor: Roy Y. Powlan
  • Publication number: 20120226361
    Abstract: Methods and apparatus of the present invention provide for orthopaedic replacement of the hip while substantially preserving muscles and soft tissues around the hip joint resulting in reduced healing time and decreased risk of dislocation following the procedure. In an exemplary embodiment, an intramedullary rod 1502 is inserted longitudinally into the femur. A prosthetic femoral neck 3102 is then inserted from a point along the side of the patient's body and into the side of the femur and through a pre-existing lateral bore in the intramedullary rod 1502 and through the remainder of the femur to join the prosthetic femoral head 1102. The methods and apparatus include structures and techniques for fixing the prosthetic femoral neck 3102 in relation to the intramedullary rod 1502.
    Type: Application
    Filed: May 14, 2012
    Publication date: September 6, 2012
    Applicant: IHIP SURGICAL, LLC
    Inventor: Anatol Podolsky
  • Patent number: 8252061
    Abstract: A femoral stem including a stem member having a distal part of the stem member which is inserted in a medullary cavity of a femur and fixed therein and a proximal part of the stem member which has a neck for fixing an artificial head and is positioned at a proximal end of the distal part. The distal part and the proximal part are integrated or separable. Also, a plate fixing portion is detachably attached at a top of the proximal part, and a greater trochanter plate is provided for depressing the greater trochanter. The greater trochanter is fixed to the plate fixing portion at a certain angle or is fixed to the plate fixing portion so as to adjust an angle of the trochanter plate.
    Type: Grant
    Filed: October 26, 2006
    Date of Patent: August 28, 2012
    Assignees: Japan Medical Materials Corporation
    Inventors: Hiroshi Mikami, Sumihiko Maeno
  • Publication number: 20120165950
    Abstract: For replacing a human hip or knee joint and the adjoining bone sections, an implantable prosthesis is provided, comprising a joint replacement part (10), a shaft replacement part (12) and a rod-shaped shaft anchoring part (16) being insertable into an axial cavity (14) in the shaft replacement part (12).
    Type: Application
    Filed: December 22, 2011
    Publication date: June 28, 2012
    Inventor: Rainer Baumgart
  • Publication number: 20120165951
    Abstract: A hip joint prosthesis adapted to be implanted in a hip joint of a human patient is provided. The hip joint prosthesis comprises a first area and a second area, and wherein said first area comprises a first material adapted to be elastic and said second area comprises a second material adapted to be elastic, and wherein said first material is adapted to be more elastic than said second material.
    Type: Application
    Filed: July 12, 2010
    Publication date: June 28, 2012
    Applicant: Milux Holding SA
    Inventor: Peter Forsell
  • Publication number: 20120130502
    Abstract: Methods and apparatus for orthopedic replacement of the hip through three incisions with a modular prosthetic system assembled in vivo while substantially preserving muscles and soft tissues around the hip joint resulting in reduced healing time and decreased risk of dislocation. A prosthetic femoral stem is inserted into the femur. A prosthetic femoral neck is inserted from a point along the side of the patient's body and into the side of the femur and through a lateral bore in the prosthetic femoral stem to join the prosthetic femoral head. The methods and apparatus include structures and techniques for fixing or enhancing interconnection of implant components, such as by increasing the interconnection in an interference fit with one or more tapers, threads, and/or cooling of components prior to assembly.
    Type: Application
    Filed: December 22, 2011
    Publication date: May 24, 2012
    Applicant: IHIP SURGICAL, LLC
    Inventors: Anatol Podolsky, Yuri Garbuzov
  • Publication number: 20120109327
    Abstract: A medical device for implantation in a hip joint of a patient is provided. The hip joint has a caput femur integrated with a collum femur having a collum and caput center axis, extending longitudinal along the collum and caput femur,in the center thereof. The medical device comprises an elongated portion adapted to at least partially replace the collum femur. The elongated portion is adapted to be connected to a prosthetic spherical portion adapted to replace the caput femur. The prosthetic spherical portion in turn is adapted to be movably placed in a prosthetic replacement for the acetabulum comprising at least one extending portion adapted to clasp said prosthetic spherical portion. The elongated portion comprises a restricting portion adapted to restrict the motion range of the spherical portion in relation to said prosthetic replacement for the acetabulum.
    Type: Application
    Filed: July 12, 2010
    Publication date: May 3, 2012
    Applicant: Milux Holding SA
    Inventor: Peter Forsell
  • Publication number: 20120029650
    Abstract: An implant, comprising: a head having a central axis; and a stem having a stem axis, wherein the head central axis and the stem axis are not co-linear. A method for resurfacing a femoral head, comprising the steps of: providing an implant according to the present invention; and implanting the implant with reference to the centre of the femoral neck.
    Type: Application
    Filed: November 5, 2009
    Publication date: February 2, 2012
    Applicant: T.J. SMITH & NEPHEW LIMITED
    Inventor: Warwick J.M. Bruce
  • Patent number: 8066779
    Abstract: A modular hip joint implant and associated method. The modular hip implant includes a femoral stem having a proximal surface defining a dovetail groove having first and second female wings, and a neck component having a distal surface defining a semi-dovetail projection engaging the dovetail groove. The projection includes a single male wing mating with the first femoral wing.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: November 29, 2011
    Assignee: Biomet Manufacturing Corp.
    Inventors: Phillip M. Gibbs, Monty J. Lackey
  • Patent number: 8021433
    Abstract: A prosthesis for partial replacement of a long bone in humans or animals, the prosthesis including: a proximal or distal end component forming one component of a prosthetic joint; a shaft on or assembled with the distal or proximal end component in use; a stem for engagement in a resected bone; and an initially separate collar assembled to the shaft or an extension thereof in use, the collar being dimensioned to abut the resected end face of the bone into which the prosthesis is to be fitted, wherein the end face of the collar facing the resected face of the bone is sized and shaped to correspond to the resected end face of the bone.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: September 20, 2011
    Assignee: Stanmore Implants Worldwide Limited
    Inventors: Jay Meswania, Paul Unwin
  • Publication number: 20110202140
    Abstract: Implants are made of materials having asymmetric modulus gradients. For example, an implant, such as a hip implant, is made of a material having a stiffness gradient between a proximal portion near a hip joint and a distal portion extending downward into the marrow of the femur. Among other benefits, the asymmetric modulus gradient mitigates problems associated with stress shielding and does not excessively wear or deteriorate the proximal portion of the implant.
    Type: Application
    Filed: February 14, 2011
    Publication date: August 18, 2011
    Applicant: UNIVERSITY OF WASHINGTON
    Inventors: Alexander C. Turner, Rajendra Kumar Bordia
  • Publication number: 20110190900
    Abstract: A hip-joint prosthesis includes a shaft which is configured to be inserted into the femur and whose surface has an osteoinductive finish. This finish is provided exclusively in the metaphyseal portion of the shaft and laterally from the line delineating the maximum antero-posterior dimension of the shaft cross section. This ensures a better involvement of the metaphyseal spongiosa in the flow of forces, without compromising the ability to perform follow-up surgery on the prosthesis.
    Type: Application
    Filed: April 11, 2011
    Publication date: August 4, 2011
    Applicant: Waldemar Link GmbH & Co. KG
    Inventor: Helmut D. LINK
  • Patent number: 7931691
    Abstract: A external femoral component for mechanically housing onto exterior remnant of natural femur and coupling with articulation elements in order to use in total hip arthroplasty defines as a hollow shell comprised of asymmetrically bell shaped cup, at least one rigid elongated stem downwardly extended from the lower rim of the cup and a plurality of an cylindrical object upwardly protruded from top of the cup for pairing with articulation elements and coupling with anchoring means and the tension anchoring means fixes the hollow shell on the bone surface through an interlocking mechanisms.
    Type: Grant
    Filed: June 28, 2006
    Date of Patent: April 26, 2011
    Inventors: Xue Li, Ping Xie, Kerry Y Xie
  • Patent number: 7914584
    Abstract: A prosthesis includes a trunnion having a first end defining a uniform cross-section and a second end adapted to be fixed to a prosthesis stem. A ceramic head has a first bearing surface on which a second prosthesis fixed to a second bone can articulate. The ceramic head defines a recess. The first end of the trunnion is fixedly received within the recess. The second end of the trunnion is releasably connectable to the prosthesis stem by a taper connection.
    Type: Grant
    Filed: October 20, 2005
    Date of Patent: March 29, 2011
    Assignee: Biomet Manufacturing Corp.
    Inventors: Robert John Andrew Bigsby, Robert Andrew Scott
  • Patent number: 7909881
    Abstract: A prosthetic femoral implant has a stem having a proximal end and a distal end. A circumferential collar is formed on the proximal end of the stem having a proximally facing surface in the form of a circular disc extending radially inwardly and proximally from a maximum outer circumference to a central neck region. The collar has a distally facing surface extending radially inwardly and distally at an included angle with respect to a central longitudinal axis of the neck region of between 120 and 140°. The distal surface of the collar is v-shaped and may be conical in form.
    Type: Grant
    Filed: June 24, 2008
    Date of Patent: March 22, 2011
    Assignee: Benoist Girard SAS
    Inventors: Florian Boucher, Everard Munting
  • Patent number: 7896926
    Abstract: A coating of blue-black or black oxidized zirconium of uniform and controlled thickness on a zirconium or zirconium alloy material is accomplished through the oxidative treatment of an amorphous zirconium or zirconium alloy substrate having an altered surface roughness. An oxidized zirconium coating of uniform and controlled thickness is especially useful on orthopedic implants of zirconium or zirconium-based alloys to provide low friction, highly wear resistant surfaces on artificial joints, such as, but not limited to, hip joints, knee joints, shoulders, elbows, and spinal implants. The uniformly thick oxidized zirconium surface of controlled depth on prostheses provide a barrier against implant corrosion caused by ionization of the metal prostheses. The invention is also useful in non-articulating implant devices such as bone plates, bone screws, etc.
    Type: Grant
    Filed: November 24, 2008
    Date of Patent: March 1, 2011
    Assignee: Smith & Nephew, Inc.
    Inventors: Gordon Hunter, Shilesh C. Jani, Vivek Pawar
  • Publication number: 20110035020
    Abstract: One embodiment of the present invention is a unique prosthetic implant and method for making a prosthetic implant. Other embodiments include apparatuses, systems, devices, hardware, methods, and combinations for prosthetic implants. Further embodiments, forms, features, aspects, benefits, and advantages of the present application shall become apparent from the description and figures provided herewith.
    Type: Application
    Filed: August 10, 2010
    Publication date: February 10, 2011
    Inventors: Lisa M. Laughner, Paul Anthony Withey, Max Eric Schlienger, Tim Pruitt
  • Patent number: 7854767
    Abstract: A modular prosthesis that may be implanted in a highly minimally invasive manner. Specifically, the modular prosthesis may include a neck and an anchor. Both the neck and the anchor are configured to be inserted and connected together through a lateral aspect of a long bone adjacent to the proximal end of the long bone. In one exemplary embodiment, the neck includes a body having a head end, configured for attachment to another prosthetic component, such as a corresponding articulating component, and an aperture extending therethrough. The anchor may be sized for receipt within the aperture formed in the neck. Additionally, the anchor may be configured such that the anchor engages the walls forming the aperture in the neck to secure the components together.
    Type: Grant
    Filed: June 15, 2007
    Date of Patent: December 21, 2010
    Assignee: Zimmer, Inc.
    Inventors: Justin J. May, Andrew J. Steiner, Dean M. J. Acker